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JEE CHEMISTRY MCQ: HYDROCARBONS

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Analyzing +4 | -1

In the following sequence the product D is,

\mathrm{CH} \equiv \mathrm{CH}\xrightarrow{{HBr}}A\xrightarrow{{HBr}}B\xrightarrow{{\mathrm{KOH}(\mathrm{alc}\mathrm{.})}}C\xrightarrow{{\mathrm{NaN}{\mathrm{H}_2}}}D:

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Correct option: C

Ethyne

Option C (Ethyne) is correct because the sequence of reactions leads back to the starting material, ethyne.

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In benzene, there is a delocalisation of π-electrons. Hence, each π-electron is attached by….carbon nuclei. Which statement is false? Assertion (A) In comparison to ethyl chloride, it is not easy to carry outnucleophilic substitution on vinyl chloride.

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